Kenya Attack: What We Know

WHAT HAPPENED TODAY:Kenyan forces moved against Muslim terrorists in Nairobi's Westgate Shopping Mall. Kenya's interior minister Joseph Ole Lenku said two terrorists were killed as military forces waged an operation to rescue remaining hostages. Lenku said all floors had been secured but the terrorist were still inside.

Dark smoke rose from one building where the military forces said the terrorists were cornered. They had set fire to mattresses, Lenku said.

HOW MANY SHOPPERS KILLED:The Kenya Red Cross said that 62 people had died since the siege began Saturday by an estimated 10 to 15 gunmen.

WHO ARE THE VICTIMS:Most of the dead were said to be Kenyans. Four British citizens, a Dutch woman, two French nationals and two Canadians, including a diplomat, were among those killed, their governments said. An African poet and author from Ghana, Kofi Awoonor, also died, Ghana's president said.

HOW MANY HOSTAGES REMAIN UNACCOUNTED FOR:Lenku said he has been told the number of remaining hostages is "very, very minimal." Most had already been evacuated, he said.

WHO ARE THE ATTACKERS:Kenya Chief of Defense forces Gen. Julius Karangi said the terrorists are allied with al-Shabab, a Somali group loyal to al-Qaeda that has been fighting for years in Somalia to force it to convert to an Islamic theocracy. Kenya has sent forces to Mogadishu, Somalia, to combat the group.

The FBI is looking into claims by al-Shabab of American citizens being involved the attack but have not confirmed the claims, says CNN.